The hottest month in Dubai is August when the average maximum temperature is 41°, average temperature is 37° and average minimum temperature is 32°.
The coolest month in Dubai is January when the average maximum temperature is 24°, average temperature is 20° and average minimum temperature is 16°.
The longest days in Dubai are in June, with an average of 13.7 hours of daylight per day. December has the shortest days with an average of 10.6 hours of daylight per day.
The sunniest days in Dubai are in June which has the most hours of sunshine per day with an average of 11.2 hours of sunshine per day, making it a very sunny and pleasant month with long bright days. January has the least sunshine with an average of 8.1 hours of sunshine per day, making it a sunny month with few clouds.
The ultraviolet index is the highest in May when it reaches 13.1 and lowest in December when it reaches 5.6.
An ultraviolet index reading above 11 indicates an extreme risk of harm from unprotected sun exposure. Unprotected skin risks burning in less than 10 minutes. Take all precautions because unprotected skin and eyes can burn in minutes. Tanning will be safest before 10am and after 4pm but only with a good application of sun screen. For those with sensitive skin stay in the shade and wear protective clothing, a wide-brimmed hat, and UV-blocking sunglasses. Generously apply broad spectrum SPF 30+ sunscreen every 2 hours, even on cloudy days. Watch out for relections from water that may increase ultraviolet exposure.
The warmest sea water temperatures in Dubai are found in May when they peak at 29° and lowest in January when they dip to 24°.
The sea is best for swimming between April and December when the temperature is above 26° which is very warm and ideal for relaxing and swimming for the whole day.
The wettest month in Dubai is November with 4.6cm of rain and January has the most days of rain with 3.7 days with some rain, a very dry time to visit the beach.
The driest month in Dubai is May with 0cm of rain and September has the fewest days of rain with 0 days with some rain, an extremely dry time to visit the beach.
The most humid month in Dubai is July with a dew point (an indicator of humidity) of 27° which is extremely humid and uncomfortable unless you are on a beach. At night you would most likely require airconditioning.
The least humid month in Dubai is January with a dew point of 14° which is comfortable for everyone.
The most windy month in Dubai is August when the average maximum windspeed is 27kmh and the average wind speed is 13kmh.
The least windy month in Dubai is November when the average maximum windspeed is 23kmh and the average wind speed is 11kmh.